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HCF & LCM · Question 6 of 63

Question 6

EasyOriginal question

The HCF of two numbers is 16 and their LCM is 480. If one of the numbers is 96, what is the other?

Options for question 6

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. HCF⁡×LCM⁡\operatorname{HCF} \times \operatorname{LCM} = product of the two numbers, so 16×480=9616 \times 480 = 96 × other.

  2. Other number = 16×48096=768096=80\frac{16 \times 480}{96} = \frac{7680}{96} = 80.

  3. Check: HCF⁡(96,80)=16\operatorname{HCF}(96, 80) = 16 and LCM⁡(96,80)=480\operatorname{LCM}(96, 80) = 480.

Concept
Finding a number from HCF, LCM and the other number
Typical time
35 s
Your time
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The rule this testsFinding HCF and LCM
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Ten questions from HCF & LCM, at your own pace.

Practise this chapter →

Ten questions from HCF & LCM, at your own pace.